1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * This file only contains the transaction commit logic. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <assert.h> 34*0Sstevel@tonic-gate #include <alloca.h> 35*0Sstevel@tonic-gate #include <errno.h> 36*0Sstevel@tonic-gate #include <stdio.h> 37*0Sstevel@tonic-gate #include <stdlib.h> 38*0Sstevel@tonic-gate #include <strings.h> 39*0Sstevel@tonic-gate #include <sys/sysmacros.h> 40*0Sstevel@tonic-gate #include "configd.h" 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #define INVALID_OBJ_ID ((uint32_t)-1) 43*0Sstevel@tonic-gate #define INVALID_TYPE ((uint32_t)-1) 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate struct tx_cmd { 46*0Sstevel@tonic-gate const struct rep_protocol_transaction_cmd *tx_cmd; 47*0Sstevel@tonic-gate const char *tx_prop; 48*0Sstevel@tonic-gate uint32_t *tx_values; 49*0Sstevel@tonic-gate uint32_t tx_nvalues; 50*0Sstevel@tonic-gate uint32_t tx_orig_value_id; 51*0Sstevel@tonic-gate char tx_found; 52*0Sstevel@tonic-gate char tx_processed; 53*0Sstevel@tonic-gate char tx_bad; 54*0Sstevel@tonic-gate }; 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate static int 57*0Sstevel@tonic-gate tx_cmd_compare(const void *key, const void *elem_arg) 58*0Sstevel@tonic-gate { 59*0Sstevel@tonic-gate const struct tx_cmd *elem = elem_arg; 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate return (strcmp((const char *)key, elem->tx_prop)); 62*0Sstevel@tonic-gate } 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate struct tx_commit_data { 65*0Sstevel@tonic-gate uint32_t txc_pg_id; 66*0Sstevel@tonic-gate uint32_t txc_gen; 67*0Sstevel@tonic-gate uint32_t txc_oldgen; 68*0Sstevel@tonic-gate short txc_backend; 69*0Sstevel@tonic-gate backend_tx_t *txc_tx; 70*0Sstevel@tonic-gate backend_query_t *txc_inserts; 71*0Sstevel@tonic-gate size_t txc_count; 72*0Sstevel@tonic-gate rep_protocol_responseid_t txc_result; 73*0Sstevel@tonic-gate struct tx_cmd txc_cmds[1]; /* actually txc_count */ 74*0Sstevel@tonic-gate }; 75*0Sstevel@tonic-gate #define TX_COMMIT_DATA_SIZE(count) \ 76*0Sstevel@tonic-gate offsetof(struct tx_commit_data, txc_cmds[count]) 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /*ARGSUSED*/ 79*0Sstevel@tonic-gate static int 80*0Sstevel@tonic-gate tx_check_genid(void *data_arg, int columns, char **vals, char **names) 81*0Sstevel@tonic-gate { 82*0Sstevel@tonic-gate struct tx_commit_data *data = data_arg; 83*0Sstevel@tonic-gate assert(columns == 1); 84*0Sstevel@tonic-gate if (atoi(vals[0]) != data->txc_oldgen) 85*0Sstevel@tonic-gate data->txc_result = REP_PROTOCOL_FAIL_NOT_LATEST; 86*0Sstevel@tonic-gate else 87*0Sstevel@tonic-gate data->txc_result = REP_PROTOCOL_SUCCESS; 88*0Sstevel@tonic-gate return (BACKEND_CALLBACK_CONTINUE); 89*0Sstevel@tonic-gate } 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate /* 92*0Sstevel@tonic-gate * tx_process_property() is called once for each property in current 93*0Sstevel@tonic-gate * property group generation. Its purpose is threefold: 94*0Sstevel@tonic-gate * 95*0Sstevel@tonic-gate * 1. copy properties not mentioned in the transaction over unchanged. 96*0Sstevel@tonic-gate * 2. mark DELETEd properties as seen (they will be left out of the new 97*0Sstevel@tonic-gate * generation). 98*0Sstevel@tonic-gate * 3. consistancy-check NEW, CLEAR, and REPLACE commands. 99*0Sstevel@tonic-gate * 100*0Sstevel@tonic-gate * Any consistancy problems set tx_bad, and seen properties are marked 101*0Sstevel@tonic-gate * tx_found. These is used later, in tx_process_cmds(). 102*0Sstevel@tonic-gate */ 103*0Sstevel@tonic-gate /*ARGSUSED*/ 104*0Sstevel@tonic-gate static int 105*0Sstevel@tonic-gate tx_process_property(void *data_arg, int columns, char **vals, char **names) 106*0Sstevel@tonic-gate { 107*0Sstevel@tonic-gate struct tx_commit_data *data = data_arg; 108*0Sstevel@tonic-gate struct tx_cmd *elem; 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate const char *prop_name = vals[0]; 111*0Sstevel@tonic-gate const char *prop_type = vals[1]; 112*0Sstevel@tonic-gate const char *lnk_val_id = vals[2]; 113*0Sstevel@tonic-gate 114*0Sstevel@tonic-gate char *endptr; 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate assert(columns == 3); 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate elem = bsearch(prop_name, data->txc_cmds, data->txc_count, 119*0Sstevel@tonic-gate sizeof (*data->txc_cmds), tx_cmd_compare); 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate if (elem == NULL) { 122*0Sstevel@tonic-gate backend_query_add(data->txc_inserts, 123*0Sstevel@tonic-gate "INSERT INTO prop_lnk_tbl" 124*0Sstevel@tonic-gate " (lnk_pg_id, lnk_gen_id, lnk_prop_name, lnk_prop_type," 125*0Sstevel@tonic-gate " lnk_val_id) " 126*0Sstevel@tonic-gate "VALUES ( %d, %d, '%q', '%q', %Q );", 127*0Sstevel@tonic-gate data->txc_pg_id, data->txc_gen, prop_name, prop_type, 128*0Sstevel@tonic-gate lnk_val_id); 129*0Sstevel@tonic-gate } else { 130*0Sstevel@tonic-gate assert(!elem->tx_found); 131*0Sstevel@tonic-gate elem->tx_found = 1; 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate if (lnk_val_id != NULL) { 134*0Sstevel@tonic-gate errno = 0; 135*0Sstevel@tonic-gate elem->tx_orig_value_id = 136*0Sstevel@tonic-gate strtoul(lnk_val_id, &endptr, 10); 137*0Sstevel@tonic-gate if (elem->tx_orig_value_id == 0 || *endptr != 0 || 138*0Sstevel@tonic-gate errno != 0) { 139*0Sstevel@tonic-gate return (BACKEND_CALLBACK_ABORT); 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate } else { 142*0Sstevel@tonic-gate elem->tx_orig_value_id = 0; 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate switch (elem->tx_cmd->rptc_action) { 146*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_NEW: 147*0Sstevel@tonic-gate elem->tx_bad = 1; 148*0Sstevel@tonic-gate data->txc_result = REP_PROTOCOL_FAIL_EXISTS; 149*0Sstevel@tonic-gate break; 150*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_CLEAR: 151*0Sstevel@tonic-gate if (REP_PROTOCOL_BASE_TYPE(elem->tx_cmd->rptc_type) != 152*0Sstevel@tonic-gate prop_type[0] && 153*0Sstevel@tonic-gate REP_PROTOCOL_SUBTYPE(elem->tx_cmd->rptc_type) != 154*0Sstevel@tonic-gate prop_type[1]) { 155*0Sstevel@tonic-gate elem->tx_bad = 1; 156*0Sstevel@tonic-gate data->txc_result = 157*0Sstevel@tonic-gate REP_PROTOCOL_FAIL_TYPE_MISMATCH; 158*0Sstevel@tonic-gate } 159*0Sstevel@tonic-gate break; 160*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_REPLACE: 161*0Sstevel@tonic-gate break; 162*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_DELETE: 163*0Sstevel@tonic-gate elem->tx_processed = 1; 164*0Sstevel@tonic-gate break; 165*0Sstevel@tonic-gate default: 166*0Sstevel@tonic-gate assert(0); 167*0Sstevel@tonic-gate break; 168*0Sstevel@tonic-gate } 169*0Sstevel@tonic-gate } 170*0Sstevel@tonic-gate return (BACKEND_CALLBACK_CONTINUE); 171*0Sstevel@tonic-gate } 172*0Sstevel@tonic-gate 173*0Sstevel@tonic-gate /* 174*0Sstevel@tonic-gate * tx_process_cmds() finishes the job tx_process_property() started: 175*0Sstevel@tonic-gate * 176*0Sstevel@tonic-gate * 1. if tx_process_property() marked a command as bad, we skip it. 177*0Sstevel@tonic-gate * 2. if a DELETE, REPLACE, or CLEAR operated on a non-existant property, 178*0Sstevel@tonic-gate * we mark it as bad. 179*0Sstevel@tonic-gate * 3. we complete the work of NEW, REPLACE, and CLEAR, by inserting the 180*0Sstevel@tonic-gate * appropriate values into the database. 181*0Sstevel@tonic-gate * 4. we delete all replaced data, if it is no longer referenced. 182*0Sstevel@tonic-gate * 183*0Sstevel@tonic-gate * Finally, we check all of the commands, and fail if anything was marked bad. 184*0Sstevel@tonic-gate */ 185*0Sstevel@tonic-gate static int 186*0Sstevel@tonic-gate tx_process_cmds(struct tx_commit_data *data) 187*0Sstevel@tonic-gate { 188*0Sstevel@tonic-gate int idx; 189*0Sstevel@tonic-gate int r; 190*0Sstevel@tonic-gate int count = data->txc_count; 191*0Sstevel@tonic-gate struct tx_cmd *elem; 192*0Sstevel@tonic-gate uint32_t val_id = 0; 193*0Sstevel@tonic-gate uint8_t type[3]; 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate backend_query_t *q; 196*0Sstevel@tonic-gate int do_delete; 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate /* 199*0Sstevel@tonic-gate * For persistent pgs, we use backend_fail_if_seen to abort the 200*0Sstevel@tonic-gate * deletion if there is a snapshot using our current state. 201*0Sstevel@tonic-gate * 202*0Sstevel@tonic-gate * All of the deletions in this function are safe, since 203*0Sstevel@tonic-gate * rc_tx_commit() guarantees that all the data is in-cache. 204*0Sstevel@tonic-gate */ 205*0Sstevel@tonic-gate q = backend_query_alloc(); 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate if (data->txc_backend != BACKEND_TYPE_NONPERSIST) { 208*0Sstevel@tonic-gate backend_query_add(q, 209*0Sstevel@tonic-gate "SELECT 1 FROM snaplevel_lnk_tbl " 210*0Sstevel@tonic-gate " WHERE (snaplvl_pg_id = %d AND snaplvl_gen_id = %d); ", 211*0Sstevel@tonic-gate data->txc_pg_id, data->txc_oldgen); 212*0Sstevel@tonic-gate } 213*0Sstevel@tonic-gate backend_query_add(q, 214*0Sstevel@tonic-gate "DELETE FROM prop_lnk_tbl" 215*0Sstevel@tonic-gate " WHERE (lnk_pg_id = %d AND lnk_gen_id = %d)", 216*0Sstevel@tonic-gate data->txc_pg_id, data->txc_oldgen); 217*0Sstevel@tonic-gate r = backend_tx_run(data->txc_tx, q, backend_fail_if_seen, NULL); 218*0Sstevel@tonic-gate backend_query_free(q); 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate if (r == REP_PROTOCOL_SUCCESS) 221*0Sstevel@tonic-gate do_delete = 1; 222*0Sstevel@tonic-gate else if (r == REP_PROTOCOL_DONE) 223*0Sstevel@tonic-gate do_delete = 0; /* old gen_id is in use */ 224*0Sstevel@tonic-gate else 225*0Sstevel@tonic-gate return (r); 226*0Sstevel@tonic-gate 227*0Sstevel@tonic-gate for (idx = 0; idx < count; idx++) { 228*0Sstevel@tonic-gate elem = &data->txc_cmds[idx]; 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate if (elem->tx_bad) 231*0Sstevel@tonic-gate continue; 232*0Sstevel@tonic-gate 233*0Sstevel@tonic-gate switch (elem->tx_cmd->rptc_action) { 234*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_DELETE: 235*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_REPLACE: 236*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_CLEAR: 237*0Sstevel@tonic-gate if (!elem->tx_found) { 238*0Sstevel@tonic-gate elem->tx_bad = 1; 239*0Sstevel@tonic-gate continue; 240*0Sstevel@tonic-gate } 241*0Sstevel@tonic-gate break; 242*0Sstevel@tonic-gate case REP_PROTOCOL_TX_ENTRY_NEW: 243*0Sstevel@tonic-gate break; 244*0Sstevel@tonic-gate default: 245*0Sstevel@tonic-gate assert(0); 246*0Sstevel@tonic-gate break; 247*0Sstevel@tonic-gate } 248*0Sstevel@tonic-gate 249*0Sstevel@tonic-gate if (do_delete && 250*0Sstevel@tonic-gate elem->tx_cmd->rptc_action != REP_PROTOCOL_TX_ENTRY_NEW && 251*0Sstevel@tonic-gate elem->tx_orig_value_id != 0) { 252*0Sstevel@tonic-gate /* 253*0Sstevel@tonic-gate * delete the old values, if they are not in use 254*0Sstevel@tonic-gate */ 255*0Sstevel@tonic-gate q = backend_query_alloc(); 256*0Sstevel@tonic-gate backend_query_add(q, 257*0Sstevel@tonic-gate "SELECT 1 FROM prop_lnk_tbl " 258*0Sstevel@tonic-gate " WHERE (lnk_val_id = %d); " 259*0Sstevel@tonic-gate "DELETE FROM value_tbl" 260*0Sstevel@tonic-gate " WHERE (value_id = %d)", 261*0Sstevel@tonic-gate elem->tx_orig_value_id, elem->tx_orig_value_id); 262*0Sstevel@tonic-gate r = backend_tx_run(data->txc_tx, q, 263*0Sstevel@tonic-gate backend_fail_if_seen, NULL); 264*0Sstevel@tonic-gate backend_query_free(q); 265*0Sstevel@tonic-gate if (r != REP_PROTOCOL_SUCCESS && r != REP_PROTOCOL_DONE) 266*0Sstevel@tonic-gate return (r); 267*0Sstevel@tonic-gate } 268*0Sstevel@tonic-gate 269*0Sstevel@tonic-gate if (elem->tx_cmd->rptc_action == REP_PROTOCOL_TX_ENTRY_DELETE) 270*0Sstevel@tonic-gate continue; /* no further work to do */ 271*0Sstevel@tonic-gate 272*0Sstevel@tonic-gate type[0] = REP_PROTOCOL_BASE_TYPE(elem->tx_cmd->rptc_type); 273*0Sstevel@tonic-gate type[1] = REP_PROTOCOL_SUBTYPE(elem->tx_cmd->rptc_type); 274*0Sstevel@tonic-gate type[2] = 0; 275*0Sstevel@tonic-gate 276*0Sstevel@tonic-gate if (elem->tx_nvalues == 0) { 277*0Sstevel@tonic-gate r = backend_tx_run_update(data->txc_tx, 278*0Sstevel@tonic-gate "INSERT INTO prop_lnk_tbl" 279*0Sstevel@tonic-gate " (lnk_pg_id, lnk_gen_id, " 280*0Sstevel@tonic-gate " lnk_prop_name, lnk_prop_type, lnk_val_id) " 281*0Sstevel@tonic-gate "VALUES ( %d, %d, '%q', '%q', NULL );", 282*0Sstevel@tonic-gate data->txc_pg_id, data->txc_gen, elem->tx_prop, 283*0Sstevel@tonic-gate type); 284*0Sstevel@tonic-gate } else { 285*0Sstevel@tonic-gate uint32_t *v; 286*0Sstevel@tonic-gate const char *str; 287*0Sstevel@tonic-gate 288*0Sstevel@tonic-gate val_id = backend_new_id(data->txc_tx, BACKEND_ID_VALUE); 289*0Sstevel@tonic-gate if (val_id == 0) 290*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_NO_RESOURCES); 291*0Sstevel@tonic-gate r = backend_tx_run_update(data->txc_tx, 292*0Sstevel@tonic-gate "INSERT INTO prop_lnk_tbl " 293*0Sstevel@tonic-gate " (lnk_pg_id, lnk_gen_id, " 294*0Sstevel@tonic-gate " lnk_prop_name, lnk_prop_type, lnk_val_id) " 295*0Sstevel@tonic-gate "VALUES ( %d, %d, '%q', '%q', %d );", 296*0Sstevel@tonic-gate data->txc_pg_id, data->txc_gen, elem->tx_prop, 297*0Sstevel@tonic-gate type, val_id); 298*0Sstevel@tonic-gate 299*0Sstevel@tonic-gate v = elem->tx_values; 300*0Sstevel@tonic-gate 301*0Sstevel@tonic-gate while (r == REP_PROTOCOL_SUCCESS && 302*0Sstevel@tonic-gate elem->tx_nvalues--) { 303*0Sstevel@tonic-gate str = (const char *)&v[1]; 304*0Sstevel@tonic-gate 305*0Sstevel@tonic-gate r = backend_tx_run_update(data->txc_tx, 306*0Sstevel@tonic-gate "INSERT INTO value_tbl " 307*0Sstevel@tonic-gate " (value_id, value_type, value_value) " 308*0Sstevel@tonic-gate "VALUES (%d, '%c', '%q');\n", 309*0Sstevel@tonic-gate val_id, elem->tx_cmd->rptc_type, str); 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate /*LINTED alignment*/ 312*0Sstevel@tonic-gate v = (uint32_t *)((caddr_t)str + TX_SIZE(*v)); 313*0Sstevel@tonic-gate } 314*0Sstevel@tonic-gate } 315*0Sstevel@tonic-gate if (r != REP_PROTOCOL_SUCCESS) 316*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_UNKNOWN); 317*0Sstevel@tonic-gate elem->tx_processed = 1; 318*0Sstevel@tonic-gate } 319*0Sstevel@tonic-gate 320*0Sstevel@tonic-gate for (idx = 0; idx < count; idx++) { 321*0Sstevel@tonic-gate elem = &data->txc_cmds[idx]; 322*0Sstevel@tonic-gate 323*0Sstevel@tonic-gate if (elem->tx_bad) 324*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_TX); 325*0Sstevel@tonic-gate } 326*0Sstevel@tonic-gate return (REP_PROTOCOL_SUCCESS); 327*0Sstevel@tonic-gate } 328*0Sstevel@tonic-gate 329*0Sstevel@tonic-gate static boolean_t 330*0Sstevel@tonic-gate check_string(uintptr_t loc, uint32_t len, uint32_t sz) 331*0Sstevel@tonic-gate { 332*0Sstevel@tonic-gate const char *ptr = (const char *)loc; 333*0Sstevel@tonic-gate 334*0Sstevel@tonic-gate if (len == 0 || len > sz || ptr[len - 1] != 0 || strlen(ptr) != len - 1) 335*0Sstevel@tonic-gate return (0); 336*0Sstevel@tonic-gate return (1); 337*0Sstevel@tonic-gate } 338*0Sstevel@tonic-gate 339*0Sstevel@tonic-gate static int 340*0Sstevel@tonic-gate tx_check_and_setup(struct tx_commit_data *data, const void *cmds_arg, 341*0Sstevel@tonic-gate uint32_t count) 342*0Sstevel@tonic-gate { 343*0Sstevel@tonic-gate const struct rep_protocol_transaction_cmd *cmds; 344*0Sstevel@tonic-gate struct tx_cmd *cur; 345*0Sstevel@tonic-gate struct tx_cmd *prev = NULL; 346*0Sstevel@tonic-gate 347*0Sstevel@tonic-gate uintptr_t loc; 348*0Sstevel@tonic-gate uint32_t sz, len; 349*0Sstevel@tonic-gate int idx; 350*0Sstevel@tonic-gate 351*0Sstevel@tonic-gate loc = (uintptr_t)cmds_arg; 352*0Sstevel@tonic-gate 353*0Sstevel@tonic-gate for (idx = 0; idx < count; idx++) { 354*0Sstevel@tonic-gate cur = &data->txc_cmds[idx]; 355*0Sstevel@tonic-gate 356*0Sstevel@tonic-gate cmds = (struct rep_protocol_transaction_cmd *)loc; 357*0Sstevel@tonic-gate cur->tx_cmd = cmds; 358*0Sstevel@tonic-gate 359*0Sstevel@tonic-gate sz = cmds->rptc_size; 360*0Sstevel@tonic-gate 361*0Sstevel@tonic-gate loc += REP_PROTOCOL_TRANSACTION_CMD_MIN_SIZE; 362*0Sstevel@tonic-gate sz -= REP_PROTOCOL_TRANSACTION_CMD_MIN_SIZE; 363*0Sstevel@tonic-gate 364*0Sstevel@tonic-gate len = cmds->rptc_name_len; 365*0Sstevel@tonic-gate if (len <= 1 || !check_string(loc, len, sz)) { 366*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 367*0Sstevel@tonic-gate } 368*0Sstevel@tonic-gate cur->tx_prop = (const char *)loc; 369*0Sstevel@tonic-gate 370*0Sstevel@tonic-gate len = TX_SIZE(len); 371*0Sstevel@tonic-gate loc += len; 372*0Sstevel@tonic-gate sz -= len; 373*0Sstevel@tonic-gate 374*0Sstevel@tonic-gate cur->tx_nvalues = 0; 375*0Sstevel@tonic-gate cur->tx_values = (uint32_t *)loc; 376*0Sstevel@tonic-gate 377*0Sstevel@tonic-gate while (sz > 0) { 378*0Sstevel@tonic-gate if (sz < sizeof (uint32_t)) 379*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 380*0Sstevel@tonic-gate 381*0Sstevel@tonic-gate cur->tx_nvalues++; 382*0Sstevel@tonic-gate 383*0Sstevel@tonic-gate len = *(uint32_t *)loc; 384*0Sstevel@tonic-gate loc += sizeof (uint32_t); 385*0Sstevel@tonic-gate sz -= sizeof (uint32_t); 386*0Sstevel@tonic-gate 387*0Sstevel@tonic-gate if (!check_string(loc, len, sz)) 388*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 389*0Sstevel@tonic-gate 390*0Sstevel@tonic-gate /* 391*0Sstevel@tonic-gate * XXX here, we should be checking that the values 392*0Sstevel@tonic-gate * match the purported type 393*0Sstevel@tonic-gate */ 394*0Sstevel@tonic-gate 395*0Sstevel@tonic-gate len = TX_SIZE(len); 396*0Sstevel@tonic-gate 397*0Sstevel@tonic-gate if (len > sz) 398*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 399*0Sstevel@tonic-gate 400*0Sstevel@tonic-gate loc += len; 401*0Sstevel@tonic-gate sz -= len; 402*0Sstevel@tonic-gate } 403*0Sstevel@tonic-gate 404*0Sstevel@tonic-gate if (prev != NULL && strcmp(prev->tx_prop, cur->tx_prop) >= 0) 405*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 406*0Sstevel@tonic-gate 407*0Sstevel@tonic-gate prev = cur; 408*0Sstevel@tonic-gate } 409*0Sstevel@tonic-gate return (REP_PROTOCOL_SUCCESS); 410*0Sstevel@tonic-gate } 411*0Sstevel@tonic-gate 412*0Sstevel@tonic-gate int 413*0Sstevel@tonic-gate object_tx_commit(rc_node_lookup_t *lp, const void *cmds_arg, size_t cmds_sz, 414*0Sstevel@tonic-gate uint32_t *gen) 415*0Sstevel@tonic-gate { 416*0Sstevel@tonic-gate const struct rep_protocol_transaction_cmd *cmds; 417*0Sstevel@tonic-gate uintptr_t loc; 418*0Sstevel@tonic-gate 419*0Sstevel@tonic-gate struct tx_commit_data *data; 420*0Sstevel@tonic-gate uint32_t count, sz; 421*0Sstevel@tonic-gate uint32_t new_gen; 422*0Sstevel@tonic-gate 423*0Sstevel@tonic-gate int ret; 424*0Sstevel@tonic-gate 425*0Sstevel@tonic-gate rep_protocol_responseid_t r; 426*0Sstevel@tonic-gate 427*0Sstevel@tonic-gate backend_tx_t *tx; 428*0Sstevel@tonic-gate backend_query_t *q; 429*0Sstevel@tonic-gate 430*0Sstevel@tonic-gate int backend = lp->rl_backend; 431*0Sstevel@tonic-gate 432*0Sstevel@tonic-gate /* 433*0Sstevel@tonic-gate * First, verify that the reported sizes make sense, and count 434*0Sstevel@tonic-gate * the number of commands. 435*0Sstevel@tonic-gate */ 436*0Sstevel@tonic-gate count = 0; 437*0Sstevel@tonic-gate loc = (uintptr_t)cmds_arg; 438*0Sstevel@tonic-gate 439*0Sstevel@tonic-gate while (cmds_sz > 0) { 440*0Sstevel@tonic-gate cmds = (struct rep_protocol_transaction_cmd *)loc; 441*0Sstevel@tonic-gate 442*0Sstevel@tonic-gate if (cmds_sz <= REP_PROTOCOL_TRANSACTION_CMD_MIN_SIZE) 443*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate sz = cmds->rptc_size; 446*0Sstevel@tonic-gate if (sz <= REP_PROTOCOL_TRANSACTION_CMD_MIN_SIZE) 447*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 448*0Sstevel@tonic-gate 449*0Sstevel@tonic-gate sz = TX_SIZE(sz); 450*0Sstevel@tonic-gate if (sz > cmds_sz) 451*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_BAD_REQUEST); 452*0Sstevel@tonic-gate 453*0Sstevel@tonic-gate loc += sz; 454*0Sstevel@tonic-gate cmds_sz -= sz; 455*0Sstevel@tonic-gate count++; 456*0Sstevel@tonic-gate } 457*0Sstevel@tonic-gate 458*0Sstevel@tonic-gate data = alloca(TX_COMMIT_DATA_SIZE(count)); 459*0Sstevel@tonic-gate (void) memset(data, 0, TX_COMMIT_DATA_SIZE(count)); 460*0Sstevel@tonic-gate 461*0Sstevel@tonic-gate /* 462*0Sstevel@tonic-gate * verify that everything looks okay, and set up our command 463*0Sstevel@tonic-gate * datastructures. 464*0Sstevel@tonic-gate */ 465*0Sstevel@tonic-gate ret = tx_check_and_setup(data, cmds_arg, count); 466*0Sstevel@tonic-gate if (ret != REP_PROTOCOL_SUCCESS) 467*0Sstevel@tonic-gate return (ret); 468*0Sstevel@tonic-gate 469*0Sstevel@tonic-gate ret = backend_tx_begin(backend, &tx); 470*0Sstevel@tonic-gate if (ret != REP_PROTOCOL_SUCCESS) 471*0Sstevel@tonic-gate return (ret); 472*0Sstevel@tonic-gate 473*0Sstevel@tonic-gate /* Make sure the pg is up-to-date. */ 474*0Sstevel@tonic-gate data->txc_oldgen = *gen; 475*0Sstevel@tonic-gate data->txc_backend = backend; 476*0Sstevel@tonic-gate data->txc_result = REP_PROTOCOL_FAIL_NOT_FOUND; 477*0Sstevel@tonic-gate 478*0Sstevel@tonic-gate q = backend_query_alloc(); 479*0Sstevel@tonic-gate backend_query_add(q, "SELECT pg_gen_id FROM pg_tbl WHERE (pg_id = %d);", 480*0Sstevel@tonic-gate lp->rl_main_id); 481*0Sstevel@tonic-gate r = backend_tx_run(tx, q, tx_check_genid, data); 482*0Sstevel@tonic-gate backend_query_free(q); 483*0Sstevel@tonic-gate 484*0Sstevel@tonic-gate if (r != REP_PROTOCOL_SUCCESS || 485*0Sstevel@tonic-gate (r = data->txc_result) != REP_PROTOCOL_SUCCESS) { 486*0Sstevel@tonic-gate backend_tx_rollback(tx); 487*0Sstevel@tonic-gate goto end; 488*0Sstevel@tonic-gate } 489*0Sstevel@tonic-gate 490*0Sstevel@tonic-gate /* If the transaction is empty, cut out early. */ 491*0Sstevel@tonic-gate if (count == 0) { 492*0Sstevel@tonic-gate backend_tx_rollback(tx); 493*0Sstevel@tonic-gate r = REP_PROTOCOL_DONE; 494*0Sstevel@tonic-gate goto end; 495*0Sstevel@tonic-gate } 496*0Sstevel@tonic-gate 497*0Sstevel@tonic-gate new_gen = backend_new_id(tx, BACKEND_ID_GENERATION); 498*0Sstevel@tonic-gate if (new_gen == 0) { 499*0Sstevel@tonic-gate backend_tx_rollback(tx); 500*0Sstevel@tonic-gate return (REP_PROTOCOL_FAIL_NO_RESOURCES); 501*0Sstevel@tonic-gate } 502*0Sstevel@tonic-gate 503*0Sstevel@tonic-gate data->txc_pg_id = lp->rl_main_id; 504*0Sstevel@tonic-gate data->txc_gen = new_gen; 505*0Sstevel@tonic-gate data->txc_tx = tx; 506*0Sstevel@tonic-gate data->txc_count = count; 507*0Sstevel@tonic-gate 508*0Sstevel@tonic-gate r = backend_tx_run_update(tx, 509*0Sstevel@tonic-gate "UPDATE pg_tbl SET pg_gen_id = %d " 510*0Sstevel@tonic-gate " WHERE (pg_id = %d AND pg_gen_id = %d);", 511*0Sstevel@tonic-gate new_gen, lp->rl_main_id, *gen); 512*0Sstevel@tonic-gate 513*0Sstevel@tonic-gate if (r != REP_PROTOCOL_SUCCESS) { 514*0Sstevel@tonic-gate backend_tx_rollback(tx); 515*0Sstevel@tonic-gate goto end; 516*0Sstevel@tonic-gate } 517*0Sstevel@tonic-gate 518*0Sstevel@tonic-gate q = backend_query_alloc(); 519*0Sstevel@tonic-gate 520*0Sstevel@tonic-gate backend_query_add(q, 521*0Sstevel@tonic-gate "SELECT lnk_prop_name, lnk_prop_type, lnk_val_id " 522*0Sstevel@tonic-gate "FROM prop_lnk_tbl " 523*0Sstevel@tonic-gate "WHERE (lnk_pg_id = %d AND lnk_gen_id = %d)", 524*0Sstevel@tonic-gate lp->rl_main_id, *gen); 525*0Sstevel@tonic-gate 526*0Sstevel@tonic-gate data->txc_inserts = backend_query_alloc(); 527*0Sstevel@tonic-gate r = backend_tx_run(tx, q, tx_process_property, data); 528*0Sstevel@tonic-gate backend_query_free(q); 529*0Sstevel@tonic-gate 530*0Sstevel@tonic-gate if (r == REP_PROTOCOL_DONE) 531*0Sstevel@tonic-gate r = REP_PROTOCOL_FAIL_UNKNOWN; /* corruption */ 532*0Sstevel@tonic-gate 533*0Sstevel@tonic-gate if (r != REP_PROTOCOL_SUCCESS || 534*0Sstevel@tonic-gate (r = data->txc_result) != REP_PROTOCOL_SUCCESS) { 535*0Sstevel@tonic-gate backend_query_free(data->txc_inserts); 536*0Sstevel@tonic-gate backend_tx_rollback(tx); 537*0Sstevel@tonic-gate goto end; 538*0Sstevel@tonic-gate } 539*0Sstevel@tonic-gate 540*0Sstevel@tonic-gate r = backend_tx_run(tx, data->txc_inserts, NULL, NULL); 541*0Sstevel@tonic-gate backend_query_free(data->txc_inserts); 542*0Sstevel@tonic-gate 543*0Sstevel@tonic-gate if (r != REP_PROTOCOL_SUCCESS) { 544*0Sstevel@tonic-gate backend_tx_rollback(tx); 545*0Sstevel@tonic-gate goto end; 546*0Sstevel@tonic-gate } 547*0Sstevel@tonic-gate 548*0Sstevel@tonic-gate r = tx_process_cmds(data); 549*0Sstevel@tonic-gate if (r != REP_PROTOCOL_SUCCESS) { 550*0Sstevel@tonic-gate backend_tx_rollback(tx); 551*0Sstevel@tonic-gate goto end; 552*0Sstevel@tonic-gate } 553*0Sstevel@tonic-gate r = backend_tx_commit(tx); 554*0Sstevel@tonic-gate 555*0Sstevel@tonic-gate if (r == REP_PROTOCOL_SUCCESS) 556*0Sstevel@tonic-gate *gen = new_gen; 557*0Sstevel@tonic-gate end: 558*0Sstevel@tonic-gate return (r); 559*0Sstevel@tonic-gate } 560